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' E. J. B'OWENJ COKE OVEN. I 7 N0. $1 5,595. m Patented Apr; 14, 1885.

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(No Model.) 2 SheetsjSheet 2.

E. J; BOWEN.

, COKE 0VEN. H 1 N0.315,595. 1 Patented Apr. 14} I885.

Mfr: 5555a .ZEYfEflTUI UNITED STATES PATENT OFFICE.

EDMUND J. BOWEN, OF MAYNARD, OHIO, ASSIGNOR TO THOMAS KELLEY,

OF SAME PLACE.

COKE-OVEN.

ESPECIPICATION forming part of Letters Patent No. 315,595, dated April14, 1885.

' Application filed November 6, 1884. (No model.)

To aZZ whom it may concern.- Be it known that I, EDMUND J. BOWEN, acitizen of the United States, residing at Maynard, in the county ofBelmont and State of Ohio, have invented certain new and use fulImprovements in Coke-Ovens; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, referrence being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification. This invention relates to coke-ovens; and

it consists in the novel construction, combination, and arrangement ofparts, as will'be more fully described hereinafter. Referring to thedrawings, Figure 1 is a top plan view of my oven. Fig. 2 is a transversesection thereof on line mm, Fig. 1. Fig. 3 is a vertical longitudinalsection of same, and Fig. 4 is a detail view of the sectional door.

The oven A is open at both ends, and is provided on opposite sides ofeach end with suitable guides or ways, B, for the gates, presentlydescribed. It will be noticed that the oven gradually widens or tapersoutward from its front end to its rear or discharge end. This is mostclearly shown in Fig. 1. By this construction the discharging of thecontents of the oven is facilitated, and clogging of the coke at therear end of the oven is obviated. Through the roof 0 of the furnace Iform suitable flues or openings, 0, preferably five in number, andarranged as most clearly shown in Fig. 1. The floor D of the furnace isby preference inclined downward from one end, in order to facilitatethcdischarging of the furnace, in the manner presently described. The floorD is provided with a series of rails, E, arranged close together andextended longitudinally along the floor, as clearly shown in Figs. 2 and3. The object of these rails is twofold. In the first place, theyprovide suitable ways for the pusher, presently described, and thusprevent all scraping of and damage to the floor. Again, they providesuitable 50 spaces between them in which to place wood,

kindling, &c., which serves to start the fire,

,and which, when burning, form flues under I 'neath the slack, whichoperate to carry off V the sulphur, &c., and thus facilitate the oper-The gates slide vertically in guides B.

ation. One or both of these gates is made inupper and lower sections, FF detachably secured by hooks F or in other suitable manner, so

that the upper section, F, may be detached 1 from the lower one andraised, so as toper- ,60 mit the leveling of the charge as is desirable.These gates F are usually provided with small openings, as f, to providethe proper circulation for the oven.

In order to conveniently raise the doors F, 1 I provide levers G,pivoted on suitable uprights, G, projected above the oven, and havingtheir short arms connected by chain, or in other suitable manner, withthe doors. By

depressing the outer ends of the levers G the door will be raised. Suchdepression may be facilitated by suspending weights CT on the outer endsof the levers, as shown. The pusher H is made a width about equal thenarrowest end of the oven,and itisprovided with a stem or frame, H,extended horizontally from its rearside. The pushing-lever I is pivotedto the frame H, and has its short end connected by a chain, J, orotherwisewith the oven or other suitable support.

The point of connection of lever I and chain J forms the fulcrum of thesaid lever, and inoperation it is desirable that the fulcrum be changedat intervals as the charge is being discharged, in order to secure thefull advantage 8 5 of the leverage at all points of operation. To securethis, I preferably connect the chain J with the oven, or if desired withthe lever, I by a hook attached to such part, so the links of the chainmay be caught thereover. By this 0 construction one link of chain J maybe conveniently detached from and another caught over the hook K, so asto shorten the chain from time to time, as maybe desirable. It ismanifest that this change of fulcrum might be 9 5 secured in variousways.- For instance, the short end of the lever might be secured to oneend of arope, the other end of which would be wound on a drum orWindlass which could be givenaslight turn from time to timeto shortenroo the rope; or a series of posts might be arranged extending out fromthe oven, and the lever be pivoted in turn thereon, or by making thelever sufficiently long it might be pivoted permanently; but sucharrangement involves a long lever which is in the way and difficult tomanage; and I prefer to employ the changingfulcrum arrangement beforedescribed, as by it I make practical the use of a short lever whichrequires but a small space for its successful operation. The power endof this lever may be operated by man-power; but it is preferablyactuated by horsepower hitched to the outer end of the lever andoperating to force same toward the oven. In practice I prefer to connectthe horse with the lever by a rope or chain, L, and to convey same fromthe lever forward toward the oven and around a pulley, M, held near saidoven, and thence back, as shown, as thereby the horse is arrangeddistant from and consequently protected from the heat of the furnace andan illcrease of power and a smoothness of application of such power isattained. I prefer in practice to employ a screw, N, turned through afixed support, 0, in front of frame and arranged to bear against theouter end of such frame. By turning this screw up against the frame thesame may be steadily and forcibly moved, so as to eaily start the pusherin case same should become clogged by any fusing or other massing of thecharge within the oven.

In operation, the pusher is forced through the oven,discharging the sameeasily and in a short time.

Myimprovement is a great advance over the common method of dischargingcoke-ovens, not only on the saving of time, but from the fact that theoven may be discharged when at full heat, so that the oven is left hotto receive the new charge. This new charge being put in the hot oven theslack is instantly ignited, carrying off at once a large quantity ofsulphur, 830.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1S

1. A coke-oven having an inlet-opening at one end and an outlet at itsopposite end and having its floor inclined downward toward its dischargeor outlet end and provided on such floor with a longitudinal series ofrails arranged side by side and a slight distance apart, substantiallyas set forth.

2. 'Ihecombination, with a coke-oven,of the pusher, the lever I, and thefulcrum-chain J, whereby the fulcrum of lever I may be set from time totime nearer to the oven and the said lever maybe given a movementlateral to the line of motion of the pusher, substantially as set forth.

3. In a coke-oven, the combination of the pusher, the lever I, and thescrew N.

In testimony whereofI affix my signature in presence of two witnesses.

EDMUND J. BOEVEN.

WVitnesses:

G120. B. PASCO, IV. S. SMITH.

